package com.buaa.annotation.security.handler;

import com.buaa.annotation.common.ResponseCode;
import com.buaa.annotation.model.ResultModel;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;

@Component
public class AuthenticationEntryPointImpl implements AuthenticationEntryPoint, Serializable {

    private static final long serialVersionUID = -8970718410437077606L;

    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException e)
            throws IOException {
        ResponseCode code = ResponseCode.INVALID_TOKEN;
        String msg = String.format("请求访问：%s，认证失败，无法访问系统资源", request.getRequestURI());
        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
        response.setContentType("application/json");
        response.setCharacterEncoding("utf-8");
        response.getWriter().println(new ObjectMapper().writeValueAsString(ResultModel.error(code, msg)));
    }
}